Steam-boiler.



ATBNTED JUNE 6, 1905.

B.,LANIER. STEAM BOILER.

. APPLIOATION r11-.nn MA1 11,1904.

' SHEETS-SHEET 1.

T. B. LANIER.

STEAM BOILER. APPLIGTION FILED 11111111.1904.

PATENTED JUNE 6. 1905.

2 SHEETS-SHEET 2,

*SII www@ l I l w UNITED ASTATES Patented June 6, 1905.

vPATENT OFFICE.

TIMUEL B. LANIER, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO WILLIAMGOOLDEN, OF CHICAGO, ILLINOIS.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. l791,561, dated June 6,1905.

Application filed May 11, 1904. Serial No. 207,431.

To all whom it may concern,.-

Be it kn'own that I, TIMUEL B. LANIER, a citizen of the UnitedStates,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Steam-Boilers, of whichthe following is a specification.

The object of this invention is the production of an improvedsteam-boiler.

In the accompanying drawings, Figure 1 is a longitudinal verticalcentral section taken through a steam-boiler embodying the features ofthis invention. Fig. 2 is a transverse vertical section on dotted line 22 of Fig. 1. Fig. 31s a horizontal section on dotted line 3 3 of Fig. 1.Fig. 4 is a detail sectionalview showing the means for passing thesteam-pipes through the water-jacket. This joint is shown in sideelevation in Figs. 2 and 3.

In the construction of this boiler I provide a metallic body portion 1,comprising the double side and top walls 2, forming a waterjacket 3 atthe sides and top of the body portion, also the double connecting-walls4, eX-

tending horizontally between the side walls 2,

and providing a water-arch 5, communicating with the two sides of thewater-jacket 3. The forward and rear ends of the body portion 1 areclosed by metallic walls 6 and 7, the front end having a door 8, closinga cleaning-opening, a door 9, closing a fuel-opening, and a door 1() toclose the opening to the ash-pit. The rear wall 7 is provided withcleaningopenings closed by suitable doors 11,12, and 13. About midway ofthe length of the boiler and extendingtransversely across it is abridgewall 14. Supported upon the forward side of said bridge-wall andupon the inner side of said front wall is a fire-grate 15. Within thebody portion are two horizontallyextending box-coils 16 and 17 theformer being only about one-half the length of the latter and at itsforward end resting upon and extending rearwardly from the bridge-wall14. The upper coil 17 is supported above the water-arch 5, the lowercoil 16 lyingl below said waterarch. AbaiIle-plate 18, secured to therear end wall 7 and the inner side walls 2, lies in a horizontal planedirectly above the upper coil 17. The lower header of the lowerboX-coil16 is connected at its opposite ends with the interior of the bodyportion 1 by means of pipes 19, the upper ends of which pipescommunicate with the water-jacket 3. The upper header of the lowerbox-coil 16 and the lower header of the upper coil 17 are connected attheir opposite ends by means of pipes 20. Pipes 21 connect the upperheader of the upper coil with a steam-pipe 22, the lower end of whichpipe communicates with the upper part of the water-jacket 3, which inpractice is the steam-dome of the boiler. The steamdome is alsoconnected, by means of the supply-pipe 23, withthe heating system.Condensation from the system returns through the condensation-pipe 24 tothe lower header of the lower coil. A supply-pipe 25 connects the lowerheader of the lower coil with the city water-supply or any othersuitable water-supply, and a valve 26 inv said pipe regulates saidsupply. A water-glass 27 of ordinary construction communicates with theinterior of the water-jacket 3.

The body portion 1 is incased at its sides by means of the brick walls28, joined by means of the arch 29.

This arch lies somewhat above the top of the body portion 1, providing asmoke-iiue 30 between said body portion and said arch, and the ends ofsaid arched structure are closed by the end walls 6 and 7. Near theforward part of the boiler a smoke-stack 31 is attached, whichsmoke-stack communicates with the smoke-flue 30. An opening 32 isprovided at the rear end of the boiler in the upper side of thewater-jacket. The forward en d of the baiIle-plate 18 falls short` ofthe' front wall 6, and the water-arch 5 is short- 31. The course takenbythe smoke through the boiler is indicated in Fig. 1 by the fulllinearrows and the circulation of water in the coils by the dotted-linearrows.' The pipes 23 and 24 extend to and Jfrom the heating or othersystem with which the boiler is connected.

Access to the interior of the boiler to clean or remove the coils is hadby means of the doors 8, 11, and 12, and to cleanand remove soot frombeneath the coils the door 13 is provided.

My invention is notrestricted to the precise construction andarrangement of parts herein shown and described,1 as such constructionand arrangement may be varied without departing from the spirit andscope of my invention..

I claim as my invention- 1. In a steam-boiler, in combination, awater-jacket comprising two sides connected at their upper endsby anairch portion; a lower coil and an upper coil supported in saidwaterjacket, the upper part of said jacket forming a steam-space; awater-arch extending from side to side of the water-jacket between saidcoils and establishing communication between the two sides of thewater-jacket; means of communication between said coils; and means ofcommunication between said upper coils and the upper part of saidwater-jacket.

2. In a steam-boiler, in combination, a water-jacket comprising twosides connected at their upper ends by an arch portion; a bridgewall insaid water-jacket; a lower box-coil extending rearwardly from saidbridge-wall, the forward end of said box-coil being substantially alinedwith said bridge-wall; a waterarch extending across said water-jacketand establishing communication between the two sides thereof, saidwater-arch extending above said lower box-coil; an upper box-coilextending substantially from end to end of said water-jacket above saidwater-arch; means of communication between said box-coils; and means ofcommunication between4 said upper box-coil and the upper part of saidwaterjacket.

3. In a steam-boiler, in combination, a water-jacket; a lower box-coiland an upper boxcoil supported in said water-jacket, cach of said coilshaving an upper header at one side and a lower header at its other side;a pipe connecting the upper header of the lower boxcoil with the lowerheader of the upper boxcoil; and a pipe connecting the upper header ofthe upper box-coil with said water-jacket.

4. In a steam-boiler, in combination, a water-jacket; a lower box-coiland an upper boxcoil supported in said water-jacket; a waterareh locatedbetween said box-coils and communicating with said water-jacket; a pipeconnecting the upper header of the lower boxcoil with the lower headerof the upper boxcoil; and means of communication between said upperbox-coil and said water-jacket.

5. In a steam-boiler, in combination, a water-jacket; an inclosingcasing; a lower boxcoil and an upper box-coil supported in saidwaterjacket; means of communication bctween said box-coils; means ofcommunication between said upper box-coil and said waterjacket; and abafHe-plate extending horizontally above the upper box-coil and betweenit and the water-jacket, said jacket being cut away to provide anopening` between the interior of the jacket and the interior of theinclosing casing.

6. In a steam-boiler, in combination, a water-jacket comprising twosides and a top; a lower box-coil and an upper box-coil supported insaid water-jacket; a water-arch located between said box-coils andcommunicating with said water-jacket, said jacket being cut away at itsrear end to provide an opening for the passage of the products ofcombustion; a baffle-plate extending horizontally between the upperbox-coil and the top of the waterjacket; means of communication betweensaid box-coils; and means of communication between said upper box-coiland said water-jacket.

TIMUEL B. LANIER.. Witnesses:

L. L. MILLER, GEORGE L. CHINDAHL.

